Revision of the genus Phyrella (Holothuroidea: Dendrochirotida) with the description of a new species from Guam Author Michonneau, François Author Paulay, Gustav text Zootaxa 2014 2014-01-31 3760 2 101 140 journal article 5952 10.11646/zootaxa.3760.2.1 7ba5f9ac-4317-459f-9829-2975de0a42ff 1175-5326 4908324 C0E4CA6E-6D93-477E-99F6-14FFB652A2A7 Phyllophorus exigua (Cherbonnier, 1980) - Thyonidiella exigua Cherbonnier, 1980: 228–231 , fig 100 A–Q. Holotype : not MNHN 1499 , Madagascar , Tuléar - Thyonidiella exigua : Rowe & Richmond, 2004: 3307 Remarks. This species is known only from the holotype , a small juvenile (< 9 mm ) specimen with 15 tentacles and a calcareous ring with short, unfragmented inter-radials. The structure of the calcareous ring thus suggests that it does not belong in Phyrella . Furthermore, the elongated plates in the body wall and the modified plates found in the podia illustrated by Cherbonnier do not coincide with the type of ossicles observed in Phyrella . Rowe & Richmond (2004) note that except for the number of tentacles (which could increase with age), it is close to Selenkiella paradoxa and could represent a juvenile of that species, also recorded from Tuléar. The holotype listed by Cherbonnier is MNHN HOL1499; however this catalog number corresponds to the type of Havelockia exigua Cherbonnier, 1958 from Sierra Leone . The holotype has not been located. Generic assignment of this species awaits additional material from the type locality; we provisionally assign it to Phyllophorus sensu lato for nomenclatural purposes.